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var(--border)}.cr>div:last-child{border-bottom:none}.cr-l{font-size:13px;color:var(--text-muted)}.cr-v{font-family:var(--font-display);font-size:15px;font-weight:700;color:var(--text);background:linear-gradient(180deg,#f8f8f6,#f1f1ee);border:1px solid rgba(214,213,208,.95);padding:6px 12px;border-radius:13px;white-space:nowrap;box-shadow:0 1px #fff9 inset}.qr{margin-top:20px}.qr-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;cursor:pointer;transition:all .1s;font-size:13px;background:#ffffffb8;border:1px solid rgba(214,213,208,.55)}.qr-row:hover{background:#fff;border-color:var(--border-strong);box-shadow:0 8px 20px #16181d0d}.qr-row.active{background:linear-gradient(180deg,#f8faff,#eef3ff);border-color:#3b6cf63d}.qr-d{font-weight:600;min-width:52px;color:var(--text)}.qr-u{font-family:var(--font-mono);color:var(--text-muted);min-width:56px;font-size:12px}.qr-b{flex:1;height:7px;background:var(--surface-2);border-radius:4px;overflow:hidden}.qr-f{height:100%;background:linear-gradient(90deg,var(--accent),#8b5cf6);border-radius:4px;transition:width .18s}.calc-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:8px}.calc-foot svg{width:14px;height:14px;flex-shrink:0}.site-foot{padding:18px 16px 28px;color:var(--text-muted);font-size:12px;text-align:center;max-width:760px;margin:0 auto}.site-foot .fw{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px;color:var(--text-secondary)}.site-foot .footer-links{display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap}.site-foot .footer-links a{padding:6px 11px;border-radius:999px;background:#fffc;color:var(--text-secondary);border:1px solid rgba(214,213,208,.95);box-shadow:0 1px #ffffffb3 inset}.site-foot .footer-links a:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-subtle)}.botnav{position:fixed;left:50%;transform:translate(-50%);bottom:10px;z-index:100;width:min(560px,calc(100% - 20px));display:grid;grid-template-columns:1fr 1fr 1fr;height:calc(var(--nav-h) + var(--safe-bottom));padding:0 8px calc(0px + var(--safe-bottom));background:#ffffffd1;backdrop-filter:blur(18px);border:1px solid rgba(214,213,208,.8);border-radius:20px;box-shadow:0 14px 34px #16181d14}.botnav .tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--text-muted);font-weight:500;border-radius:14px;margin:6px 4px;transition:background .14s ease,color .14s ease,transform .14s ease}.botnav .tab:hover{background:#ffffffb3;color:var(--text-secondary);transform:translateY(-1px)}.botnav .tab svg{color:currentColor}.botnav .active{color:var(--accent);background:var(--accent-subtle)}.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + var(--safe-bottom) + 16px);transform:translate(-50%) translateY(12px);background:#16181df2;color:#fff;font-size:13px;padding:10px 14px;border-radius:10px;opacity:0;pointer-events:none;transition:all .18s ease;box-shadow:var(--shadow-lg)}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}@media(max-width:720px){.hero{padding:calc(var(--topbar-h) + 28px) 16px 36px}.page{padding:18px 12px 24px}.article{padding:22px 16px}.prep-grid{grid-template-columns:1fr 1fr}.prose table{font-size:12.5px;margin:14px 0 18px}.prose thead th,.prose tbody td{padding:8px 10px}.hero-stats{gap:10px}.hero-stat{min-width:calc(50% - 5px)}.hero-stat .n{font-size:22px}.category-grid,.mini-links,.grid{grid-template-columns:1fr}.section-head{margin-top:6px}.botnav{width:calc(100% - 12px);bottom:6px;border-radius:18px}.calc{padding:24px 16px;border-radius:22px}.syr-svg{width:100%}}